Move encode and decode functions to common module.

src/judge0/api.py

@@ -28,6 +28,7 @@ def resolve_client(
     if isinstance(submissions, Submission):
         submissions = [submissions]
 
+    # TODO: Move to async_execute and sync_execute.
     if submissions is not None and len(submissions) == 0:
         raise ValueError("Client cannot be determined from empty submissions argument.")
 

src/judge0/clients.py

@@ -87,6 +87,7 @@ def create_submission(self, submission: Submission) -> Submission:
             "wait": "false",
         }
 
+        # TODO: Rename to_dict to as_body that accepts the client.
         body = submission.to_dict()
         # We have to resolve language_id because language_id can be Language
         # enumeration.

src/judge0/common.py

@@ -1,3 +1,4 @@
+from base64 import b64decode, b64encode
 from enum import IntEnum
 
 
@@ -30,3 +31,11 @@ class Status(IntEnum):
     RUNTIME_ERROR_OTHER = 12
     INTERNAL_ERROR = 13
     EXEC_FORMAT_ERROR = 14
+
+
+def encode(text: str) -> str:
+    return b64encode(bytes(text, "utf-8")).decode()
+
+
+def decode(b64_encoded_str: str) -> str:
+    return b64decode(b64_encoded_str.encode()).decode(errors="backslashreplace")

src/judge0/submission.py

@@ -1,8 +1,6 @@
-from base64 import b64decode, b64encode
-
 from typing import Union
 
-from .common import Language, Status
+from .common import decode, encode, Language, Status
 
 ENCODED_REQUEST_FIELDS = {
     "source_code",
@@ -48,14 +46,6 @@
 SKIP_FIELDS = {"language_id", "language", "status_id"}
 
 
-def encode(text: str) -> str:
-    return b64encode(bytes(text, "utf-8")).decode()
-
-
-def decode(b64_encoded_str: str) -> str:
-    return b64decode(b64_encoded_str.encode()).decode(errors="backslashreplace")
-
-
 class Submission:
     """
     Stores a representation of a Submission to/from Judge0.
@@ -138,6 +128,7 @@ def set_attributes(self, attributes):
             else:
                 setattr(self, attr, value)
 
+    # TODO: Rename to as_body that accepts a Client.
     def to_dict(self) -> dict:
         body = {
             "source_code": encode(self.source_code),
@@ -160,4 +151,5 @@ def is_done(self) -> bool:
         if self.status is None:
             return False
         else:
-            return self.status["id"] not in [Status.IN_QUEUE, Status.PROCESSING]
+            # TODO: When status is changed to `Status`, refactor this as well.
+            return self.status["id"] not in (Status.IN_QUEUE, Status.PROCESSING)